I submitted my New York State resident tax return close to 6 weeks ago. I filled the form (IT-201) on my computer, printed and signed, and then put it in the mail in a random mail box in Manhattan. I didn't have tracking or anything fancy like that: just an old-fashioned handwritten address and stamp.
I owed over $1000 in state tax, and the money has not been deducted from my account. Every year I have owed state tax, and in my experience the amount is deducted within a week or two of my return being mailed. So, I'm beginning to worry that the state government has not received my return due to some problem with the mail.
How should I proceed? My main concern is that I've no way to prove that I submitted the return on time, and so I could be hit with late return penalties if I do something naive like just mailing it in again.